DHCP with secondary network

we have a ruckus wireless router r500. we have configured DHCP pool in this access point with secondary network in VLAN1. We have DHCP server in the primary network of VLAN1. When we connect our device to this accesspoint it will supply IP from the primary network of VLAN1 and not from the pool specified in the Access point. How to get an IP from the range specified in the access point, which is secondary address from VLAN 1.?